XGY   Grimsby Mountain, ON
Weather Observed At   43-11  N    79-34  W
 
*** AURBO GREEN WARNING IN EFFECT ***
overhead
  2026-03-22 2:30pm Max
Min
  Weather
----



  Temperature
 3.4 °C
 5.6 °C
   1:00pm
 0.8 °C
   3:32am
  Relative Humidity
 93 %
93 %
  6:55am
 90 %
 12:00am
  Dew Point
 2.4 °C
 4.4 °C
  12:55pm
 -0.6 °C
  12:00am
  Wind Velocity
 346 ° at  3.3 G 7.0 kt
 8.7 kt
   9:16am
  Pressure
     29.733 in  ↑ PRESRR
29.761 in
  12:00am
 29.561 in
   8:51am
  Rainfall Rate
 0.8 mm/h 10.4 mm/h
  11:42am
  Snow On Ground 0 cm

  Brightness / Darkness   49 W/m² /  19.22 m/as² 223 W/m²
  12:54pm
   19.67 m/as²    2:52am
  Remarks
  
  RainfallToday
 4.8 mm
 Storm Total
 4.8 mm
  SnowfallToday
0.0 cm
 Storm Total
0.0 cm
  Evapotranspiration Today
 -0.15 mm

  Lake Conditions
   Water Temperature  --- °C
   Waves  ---
OPEN WATER
  Meteor Index
4   Random
  Aurora Index
250   Major Storm   - 2 nT   Solar Flux   107  sfu  /   S 0    R 0    G 3   /  MUF   23.6 MHz
  Sunrise 7:18am
   Sunset 7:33pm
  Moonrise N/A
  Moonset N/A
  Moon Phase Waxing Crescent
Grimsby Mountain Weather Maps
Local Regional Area Synoptic

     
updated H+09 and every 10m updated H+19 and H+49
 updated H+19

Ontario 6-Hour Meteorological Summary
Canadian 6-Hour Meteorological Summaries

Grimsby Mountain Charts

 





 




Sky Quality (Darkness) Meter courtesy of  www.Unihedron.com

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